TY  - JOUR 
TI  - Evaluación del rendimiento de la tecnología VoIP en un conjunto de servicios ampliado, en concordancia con IEEE 802.11g
PB  - Universidad Icesi
PY  - 2017
issn 1692-5238
AB  - In this paper, we evaluate the performance in function of the metrics associated to Quality of Service
[QoS] and Quality of user Experience [QoE] in an experimental way in the VoIP service for G.711 and G.729 códecs.
This was performed over an extended service set based on Wi-Fi technology in concordance with IEEE 802.11g standard
using embedded systems. QoS related metrics are obtained by using the intrusive traffic injection technique. In
addition, we assessed the QoE using the MOSc [Mean Opinion Score conversational] analysis. The best results were
obtained for G.729, reaching up to 25 simultaneous injections with optimal delay, jitter and packet loss values according
to the ITU-T recommendation for VoIP. However, the G.711 codec presented a better throughput. On the other hand,
QoE evaluation indicates a slight superiority of G.729 in the MOSc appreciation. Finally, we conclude that packet loss
and delay are the most influential metrics in VoIP service degradation.
KW  - Tecnología
KW  - QoS (Calidad de servicio)
KW  - QoE (Calidad del servicio en el tráfico de redes informáticas)
KW  - VoIP (Voz sobre IP)
UR  - http://www.icesi.edu.co/revistas/index.php/sistemas_telematica/article/view/2541
ER  -